"The single biggest variable we have every year is Mother Nature and the weather," he said.

The crowds came in spite of two separate gunfire incidents just off the festival grounds that dominated news coverage.

In the most recent case, Bethlehem Police say a teenager shot into a crowd on Garrison Street, striking two people. That suspect, Julius Jose Cortijo, 17, turned himself into police on Sunday. He's in jail under $1 million bond.

"I know some of it is gang-related," said festival-goer Laurie Hammond of Bethlehem. "I see it in the schools; it's a shame."

This week, Bethlehem Police Chief Mark DiLuzio issued an internal memo calling for a crackdown on rowdy teenagers at Musikfest.

"We'll sit down and look at every single element of the festival afterward and evaluate everything," Demko said.

Demko said the focus will be on addressing concerns about underage visitors while maintaining the kind of open, fun environment that draws so many people to Musikfest in the first place.

"I don't know if there's a great way to crack down on that unless you're going to stop everyone who's carrying something around in a bottle," Evasic said.